CLF-C02 Billing, Pricing, and Support Practice Question
A company is evaluating a migration of its on-premises data center to AWS. The CIO wants a detailed report that compares the total cost of ownership (TCO) of the current on-premises infrastructure versus running the equivalent workloads on AWS. The report should include costs for hardware, software, labor, power, cooling, and facilities. Which AWS tool should the company use to generate this comparison?
⚠ Common exam trap
Test-takers frequently confuse the AWS Pricing Calculator (which only estimates AWS service costs) with the TCO Calculator (which includes on-premises cost inputs), leading them to choose Option A for a TCO comparison.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
AWS Total Cost of Ownership (TCO) Calculator
The AWS Total Cost of Ownership (TCO) Calculator is specifically designed to compare the costs of on-premises infrastructure with AWS, including hardware, software, labor, power, cooling, and facilities. It generates a detailed report that breaks down these cost categories, making it the correct tool for the CIO's requirement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
AWS Pricing Calculator
Why it's wrong here
The AWS Pricing Calculator lets you select AWS services, define configuration details such as instance type, storage, and data transfer, and estimate the monthly charge for a proposed cloud architecture. However, it only models the AWS side of the equation, relying on your assumptions about utilization and pricing, and has no mechanism to capture existing on-premises hardware, software licenses, power, cooling, or administration costs. Because it cannot calculate the current total cost of ownership, it yields a one-sided estimate rather than the comparative report that a migration evaluation requires.
When this WOULD be correct
When a company needs to estimate the monthly cost of running specific AWS resources (e.g., EC2, RDS) for a new cloud-native application without comparing to on-premises infrastructure.
- ✓
AWS Total Cost of Ownership (TCO) Calculator
Why this is correct
The AWS TCO Calculator is the correct tool for comparing the total cost of ownership between on-premises infrastructure and AWS. It takes on-premises configuration details and produces a report including hardware, software, labor, power, cooling, and facilities costs alongside projected AWS costs.
- ✗
AWS Cost Explorer
Why it's wrong here
AWS Cost Explorer is an analytics tool that visualizes your historical AWS cost and usage data, enabling you to break down spending by service, linked account, or tag and to create forecasts based on past trends. It is expressly designed to operate on AWS billing records, so it has no capability to import on-premises infrastructure costs or to model the financial impact of a hypothetical migration. Since the user is evaluating a move from an on-premises data center, there is no AWS history to analyze, making Cost Explorer inappropriate for this scenario.
When this WOULD be correct
A company wants to visualize and analyze its past AWS spending and usage patterns to identify cost-saving opportunities or forecast future costs. The question would ask for a tool to review historical AWS costs, not compare with on-premises.
- ✗
AWS Trusted Advisor
Why it's wrong here
AWS Trusted Advisor is a support service that inspects your existing AWS environment and delivers recommendations across cost optimization, security, performance, and fault tolerance. While its cost optimization checks can highlight underused EC2 instances or EBS volumes, it operates strictly on live AWS resources after you have already migrated. It cannot ingest on-premises configuration data, nor does it produce a side-by-side TCO comparison of running workloads in your data center versus AWS. Therefore it is a post-migration optimization tool, not a migration TCO estimator.
When this WOULD be correct
A company wants to identify cost savings opportunities in its existing AWS environment, such as underutilized instances or idle resources, and receive actionable recommendations to reduce spending.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The CLF-C02 exam frequently reuses these exact scenarios with slightly different constraints.
✓AWS Total Cost of Ownership (TCO) CalculatorCorrect answer▾
Why this is correct
The AWS TCO Calculator is the correct tool for comparing the total cost of ownership between on-premises infrastructure and AWS. It takes on-premises configuration details and produces a report including hardware, software, labor, power, cooling, and facilities costs alongside projected AWS costs.
✗AWS Pricing CalculatorWrong answer — click to see why▾
Why this is wrong here
The AWS Pricing Calculator estimates costs for individual AWS services but does not compare on-premises TCO with AWS, lacking support for hardware, software, labor, power, cooling, and facilities costs.
★ When this WOULD be the correct answer
When a company needs to estimate the monthly cost of running specific AWS resources (e.g., EC2, RDS) for a new cloud-native application without comparing to on-premises infrastructure.
Why candidates choose this
Candidates confuse cost estimation for AWS services with TCO comparison, assuming the Pricing Calculator can incorporate on-premises costs.
✗AWS Cost ExplorerWrong answer — click to see why▾
Why this is wrong here
AWS Cost Explorer analyzes historical costs and usage, but does not compare on-premises TCO with AWS costs; it lacks the ability to model on-premises infrastructure costs.
★ When this WOULD be the correct answer
A company wants to visualize and analyze its past AWS spending and usage patterns to identify cost-saving opportunities or forecast future costs. The question would ask for a tool to review historical AWS costs, not compare with on-premises.
Why candidates choose this
Candidates may confuse Cost Explorer with a cost comparison tool because its name suggests exploring costs, and they might think it can compare on-premises vs. AWS costs if they are not familiar with the TCO Calculator's specific purpose.
✗AWS Trusted AdvisorWrong answer — click to see why▾
Why this is wrong here
AWS Trusted Advisor provides best practice recommendations for cost optimization, performance, security, and fault tolerance, but it does not generate a detailed TCO comparison report comparing on-premises infrastructure to AWS.
★ When this WOULD be the correct answer
A company wants to identify cost savings opportunities in its existing AWS environment, such as underutilized instances or idle resources, and receive actionable recommendations to reduce spending.
Why candidates choose this
Candidates may think Trusted Advisor can compare costs because it offers cost optimization checks, but it only analyzes current AWS usage, not on-premises vs. AWS TCO.
Analysis generated from the official CLF-C02blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
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This CLF-C02 question is part of Courseiva's 988-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CLF-C02 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CLF-C02 exam.